Selenium, an open-source project under the Apache Software Foundation, is a comprehensive framework for web application testing across different browsers and operating systems using various programming languages. With its latest version, Selenium 4, offering features like relative locators and W3C compliance, it remains a preferred choice for automated browser testing despite the rise of newer frameworks like Cypress. Hacktoberfest, a month-long open-source software celebration, features numerous Selenium-related projects on GitHub, highlighting innovations such as Docker Selenium for scalable test execution and Panther for PHP and Symfony testing. The diversity of projects, ranging from web scraping tools to social media bots, illustrates the active community and the widespread use of Selenium in automated testing and beyond.